Zone 0, Zone 1, and Zone 2 EnclosuresZone 0: Is the dip tank and the supply tank that contain a chemical mixture of Hexane, Ethanol, and Methanol.Zone 1: Is the enclosure around the upper part of the tanks and the dryer. It is connected to the BLWR0103 blower that maintains negative pressure in the enclosure. Zone 2: Is the remainder of the machine located outside the tank/dryer enclosures. It is connected to the BLWR0102 blower which maintains a positive pressure to prevent fumes from entering these areas. All electrical devices in Zone 1 are rated for safe exposure to hazardous liquids and vapors.